Heat dissipating module

ABSTRACT

A heat dissipating module includes a case, a fan, a heat dissipating part, at least one first fastening device, and a dust removal device. The case has a first air opening and a second air opening. The fan is installed in the case, and it is used to guide an air flow through the first air opening and the second air opening. The heat dissipating part is located at the second air opening. The first fastening device is located at the second air opening and disposed between the case and the heat dissipating part. The dust removal device has a side arm, and the side arm has a second fastening device that is capable of attaching to and detaching from the first fastening device.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The invention relates to a heat dissipating module and, moreparticularly, to a heat dissipating module.

2. Description of the Related Art

With the progress of the electronic science and technology, functions ofan electronic product become more and more complicated and powerful. Theoperating speed of an internal microprocessor of the electronic productshould become quicker and quicker to deal with heavy system operatingworkloads. However, when the operating speed of the microprocessorcontinuously increases, heat generated in the operating process alsocontinuously increases. Therefore, when manufacturers design theelectronic product, heat dissipation should be considered.

As far as a notebook computer is considered, since it is light, slim,short, small, and portable, internal components are generally arrangedclosely. Thus, heat generated by each component (in particular, acentral processing unit) accumulates quickly. The heat dissipationproblem is not well dealt with, the system may be down, and the internalcomponents may even be burned. Therefore, the heat dissipationefficiency has a crucial effect on the performance of the notebookcomputer.

Generally speaking, in the notebook computer, a combination of a fan anda heat dissipating part is used on an electronic component whose heatneeds to be dissipated such as a central processing unit to achieve heatdissipation. FIG. 1 is a schematic diagram of a conventional heatdissipating module 10. As shown in FIG. 1, the heat dissipating module10 includes a case 12, a fan 14, a locking device 15, a heat dissipatingpart 16, and a filter structure 17. The case 12 has an air outlet 18.The fan 14 is installed in the case 12. The locking device 15 is used todispose the filter structure 17 on the case 12. The heat dissipatingpart 16 is located at the air outlet 18, and the heat dissipating part16 has parallel dissipating fins 20. When the electronic componentoperates to generate heat, the heat dissipating module 10 drives air toflow to the air outlet 18 by the rotation of the fan 14 and quicklydissipates the heat generated from the electronic component by heatconduction of the heat dissipating part 16. Since airflow generated inthe heat dissipation process may drive internal dust, dust isaccumulated on the heat dissipating part 16 after the notebook computerhas operated for a long time. That is, much dust adheres to the heatdissipating fins 20 of the heat dissipating part 16, which reduces heatdissipation of the heat dissipating module 10. To improve the abovesituation, the heat dissipating part 16 may be detached directly toremove dust, or the locking device 15 may be utilized to dispose thefilter structure 17 downward on the case 12 to reduce dust adhering tothe heat dissipating fins 20, as shown in FIG. 1. However, the heatdissipating part 16 is not easy to detach, and only after the lockingdevice 15 is detached, the filter structure 17 may be detached from thecase 12. Therefore, both of the above methods have a troublesomedetaching process.

BRIEF SUMMARY OF THE INVENTION

One objective of the invention is to provide a heat dissipating modulecapable of detaching a dust removal device.

The embodiment of the invention discloses a heat dissipating module. Theheat dissipating module includes a case, a fan, a heat dissipating part,at least one first fastening device, and a dust removal device. The casehas a first air opening and a second air opening. The fan is installedin the case, and it is used to guide an air flow through the first airopening and the second air opening. The heat dissipating part is locatedat the second air opening. The first fastening device is located at thesecond air opening and disposed between the case and the heatdissipating part. The dust removal device has at least one side arm. Theside arm has a second fastening device that is capable of attaching toand detaching from the first fastening device.

There and other features, aspects, and advantages of the presentinvention will become better understood with regard to the followingdescription, appended claims, and accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a conventional heat dissipating module;

FIG. 2 is a schematic diagram of a heat dissipating module according toa first embodiment of the invention;

FIG. 3 is a schematic diagram of a heat dissipating module according toa second embodiment of the invention;

FIG. 4 is a schematic diagram of a heat dissipating module according toa third embodiment of the invention; and

FIG. 5 is a schematic diagram of a heat dissipating module according toa fourth embodiment of the invention.

DETAILED DESCRIPTION OF THE EMBODIMENTS

FIG. 2 is a schematic diagram of a heat dissipating module 50 accordingto a first embodiment of the invention. As shown in FIG. 2, the heatdissipating module 50 includes a case 52, a fan 54, a heat dissipatingpart 56, at least one first fastening device 58, and a dust removaldevice 60. The case 52 has a first air opening 62 and a second airopening 64. As shown in FIG. 2, the first air opening 62 issubstantially perpendicular to the second air opening 64. The fan 54 isinstalled in the case 52, and it is used to guide an air flow from thefirst air opening 62 to the second air opening 64 or from the second airopening 64 to the first air opening 62. The heat dissipating part 56 islocated at the second air opening 64, and it is used to dissipate heatabsorbed by the air flowing through the second air opening 64. The firstfastening device 58 is located at the second air opening 64 and disposedbetween the case 52 and the heat dissipating part 56. Preferably, thefirst fastening device 58 and the case 52 are integrally formed. Thedust removal device 60 includes a filter 66 and at least one side arm68. The side arm 68 has a second fastening device 70 that is capable ofattaching to and detaching from the first fastening device 58. As shownin FIG. 2, the second fastening device 70 may be a T-shaped slider rail,and the first fastening device 58 may be a slideway that corresponds tothe T-shaped slider rail. Thus, the dust removal device 60 may befastened in the case 52 by a combination of the first fastening device58 and the second fastening device 70. The fastening relationshipbetween the first fastening device 58 and the second fastening device 70is detachable. When the filter 66 has much dust to affect the heatdissipation effect of the heat dissipating module 50, a user only needsto raise the dust removal device 60 upward to separate the secondfastening device 70 from the first fastening device 58. Thus, the dustremoval device 60 may be detached easily, and the user may clean thefilter of the detached dust removal device 60 to remove the dust.Furthermore, the slider rail structure of the second fastening device 70is not limited herein, and it may be slider rail structures with othershapes, which depends on requirements of a practical application.

FIG. 3 is a schematic diagram of a heat dissipating module 100 accordingto a second embodiment of the invention. The elements of the secondembodiment whose reference numbers are the same with that of theelements of the first embodiment have the same functions or relativepositions. Therefore, they are not described for a concise purpose. Thedifference between the heat dissipating module 100 and the heatdissipating module 50 of the first embodiment lies in the design of thedust removal device. As shown in FIG. 3, the heat dissipating module 100includes a toothed hook dust removal device 102. Thus, when detachingthe toothed hook dust removal device 102 according to the above flowpath, a user can detach the dust removal device and remove dust adheringto the heat dissipating fins 20 at the same time. In addition, thefilter 66 may be disposed on the toothed hook dust removal device 102 toimprove the situation that dust accumulates on the heat dissipating fins20.

Afterwards, FIG. 4 is a schematic diagram of a heat dissipating module150 according to a third embodiment of the invention. The elements ofthe third embodiment whose reference numbers are the same with that ofthe elements of the first embodiment have the same functions or relativepositions. Therefore, they are not described for a concise purpose. Thedifference between the heat dissipating module 150 and the heatdissipating module 50 of the first embodiment lies in the design of thedust removal device and the fastening device. As shown in FIG. 4, theheat dissipating module 150 includes a dust removal device 152, a firstfastening device 154, a case 52, a fan 54, and a heat dissipating part56. The dust removal device 152 has at least one handle 156 and at leastone side arm 158. The dust removal device 152 further includes a pullingcomponent 160 and a filter 66. The pulling component 160 is disposed onthe dust removal device 152. The side arm 158 has a second fasteningdevice 162 that is capable of attaching to and detaching from the firstfastening device 154. The first fastening device 154 and the case 52 areintegrally formed, and the first fastening device 154 has an indentationportion 164. The handle 156 has a protrudent portion 166 for lockingwith the indentation portion 164. In addition, the first fasteningdevice 154 may be a ␣-shaped slideway, and the second fastening device162 may be a slider that corresponds to the shape of the first fasteningdevice 154. Thus, the dust removal device 152 may be fastened to thecase 52 by locking the indentation portion 164 with the protrudentportion 166 and fastening the first fastening device 154 with the secondfastening device 162. If a user wants to detach the dust removal device152 from the heat dissipating module 150, the user only needs to pressthe handle 156 to loose the protrudent portion 166 from the indentationportion 164 and utilize the pulling component 160 to raise the dustremoval device 152 upward to separate the second fastening device 162 ofthe dust removal device 152 from the first fastening device 154 of thecase 52. Thus, the dust removal device 152 may be detached easily.

FIG. 5 is a schematic diagram of a heat dissipating module 200 accordingto a fourth embodiment of the invention. The elements of the fourthembodiment whose reference numbers are the same with that of theelements of the third embodiment have the same functions or relativepositions. Therefore, they are not described for a concise purpose. Thedifference between the heat dissipating module 200 and the heatdissipating module 150 of the third embodiment lies in the installingposition of the fastening device. As shown in FIG. 5, the firstfastening device 154 is disposed at a lateral side 202 of the heatdissipating part 16. The dust removal device 152 may be fastened to theheat dissipating part 56 by locking the indentation portion 164 of thefirst fastening device 154 with the protrudent portion 166 of the handle156 of the dust removal device 152 and fastening the first fasteningdevice 154 with the second fastening device 162. Thus, when a user wantsto detach the dust removal device 152 from the heat dissipating module200, the user only needs to press the handle 156 to loose the protrudentportion 166 from the indentation portion 164 and utilize the pullingcomponent 160 to raise the dust removal device 152 upward to separatethe second fastening device 162 of the dust removal device 152 from thefirst fastening device 154 of the heat dissipating part 56. Thus, thedust removal device 152 may be detached easily.

The numbers of the fastening device and the handle mentioned in theabove embodiments are not limited to be one. That is, another fasteningdevice or another handle which is used to fasten the dust removal devicemay be additionally disposed at the other lateral side that correspondsto the position of the fastening device and the handle. Thus, when auser wants to detach the dust removal device from the heat dissipatingmodule, he or she only needs to press two handles of the dust removaldevice to loose the protrudent portions from the indentation portions onthe two sides. Then, the user can utilize the pulling component to raisethe dust removal device upward along the rails of the fastening deviceson the two sides to detach the dust removal device easily. Furthermore,the positions of the indentation portion and the protrudent portion inthe embodiment may be interchangeable. That is, the handle may have anindentation portion, and the fastening device may have a protrudentportion.

In the invention, the fastening relationship of the fastening devicesand the locking relationship of the indentation portion and theprotrudent portion are utilized to achieve the objective of simpleassembly and detachment. Thus, when dust adheres to the heat dissipatingpart after the heat dissipating module is used for a long time, a useronly needs to raise the dust removal device upward to easily detach thedust removal device. Then, the user can clean the detached dust removaldevice. After cleaning the dust removal device, the user can assemblethe dust removal device on the heat dissipating module again along thefastening rail of the fastening device.

Although the present invention has been described in considerable detailwith reference to certain preferred embodiments thereof, the disclosureis not for limiting the scope of the invention. Persons having ordinaryskill in the art may make various modifications and changes withoutdeparting from the scope and spirit of the invention. Therefore, thescope of the appended claims should not be limited to the description ofthe preferred embodiments described above.

1. A heat dissipating module comprising: a case having a first airopening and a second air opening; a fan installed in the case, forguiding an air flow through the first air opening and the second airopening; a heat dissipating part located at the second air opening; atleast one first fastening device located at the second air opening anddisposed between the case and the heat dissipating part; and a dustremoval device having at least one side arm, wherein the side arm has asecond fastening device that is capable of attaching to and detachingfrom the first fastening device.
 2. The heat dissipating moduleaccording to claim 1, wherein the dust removal device comprises afilter.
 3. The heat dissipating module according to claim 1, wherein theheat dissipating part comprises a plurality of parallelly arranged heatconducting fins.
 4. The heat dissipating module according to claim 1,wherein the dust removal device is a toothed hook dust removal device.5. The heat dissipating module according to claim 1, wherein a pullingcomponent is disposed on the dust removal device.
 6. The heatdissipating module according to claim 1, wherein the first fasteningdevice and the case are integrally formed.
 7. The heat dissipatingmodule according to claim 1, wherein the first fastening device isinstalled at a lateral side of the heat dissipating part.
 8. The heatdissipating module according to claim 1, wherein the first fasteningdevice has an indentation portion.
 9. The heat dissipating moduleaccording to claim 8, wherein the dust removal device comprises at leastone handle, and the handle has a protrudent portion for locking with theindentation portion to fasten the dust removal device between the caseand the heat dissipating part.
 10. The heat dissipating module accordingto claim 1, wherein the second fastening device is a slider, and thefirst fastening device is a corresponding slideway.
 11. The heatdissipating module according to claim 1, wherein the second fasteningdevice is a slider rail, and the first fastening device is acorresponding slideway.
 12. The heat dissipating module according toclaim 11, wherein the slider rail is a T-shaped slider rail.
 13. Theheat dissipating module according to claim 1, wherein the first airopening is substantially perpendicular to the second air opening.